Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323039 | Non-volatile semiconductor memory and method of manufacturing the same | Masamichi Asano, Hiroshi Iwahashi, Ryozo Nakayama, Satoshi Inoue, Riichiro Shirota +2 more | 1994-06-21 |
| 5321699 | Electrically erasable and programmable non-volatile memory system with write-verify controller using two reference levels | Tetsuo Endoh, Riichiro Shirota, Kazunori Ohuchi, Seiichi Aritome, Tomoharu Tanaka +1 more | 1994-06-14 |
| 5293337 | Electrically erasable programmable read-only memory with electric field decreasing controller | Seiichi Aritome, Riichiro Shirota, Yoshihisa Iwata, Masaki Momodomi | 1994-03-08 |